How can you tell if your brake discs are warped?
Answers:
Your braking distance isn't what it was and there's a grawnching noise when you brake hard. Do you ever get the car serviced, or do you just wait till something nasty happens? - Like running over a Little Old Lady. Yes, I knew all along what lol meant. I was just testing
Your car shudders when you beak.
There are probably other signs too, but when it happened to my car, this is what happened.
have a good look at them
vibration in the steering wheel when you apply the brakes.
In regards to what Dazza said, you cannot usually see the warp.
They can be turned, but depending on the make of car, new ones can be fairly inexpensive at major auto parts stores.
Jack up the car.remove the wheel..look sideways on at the disc and turn the hub. you will be able to see if the disc is warped.
Make sure the callipers are tight and the pads are inserted correctly as this can some times give the illusion of a warped disc when turning.
Car shudders when ou break. and there will be rubbing sound when you brake.
drive down the motorway at top speed, wait till a pensioner jumps out in front of you, then brake
get out and measure the amount of gunge, if a little, brakes fine, if alot. get em fixed
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Steering wheel vibrates when you apply the brakes.
Most cars, the rotors are really in-expensive! We paid about $19 each for the past five cars we did! We buy used cars in our family, and fix them well, ourselves.
take the whell off and see if there is a big lip around the edge of the disc if so then id get new ones
you will feel the brake pedal pulsate up and down slightly when you brake. this means a warped disk.
Driving test - if the brake pedal vibrates a bit (and the ABS light is not on) when you apply the brakes, the rotors are probably warped.
Garage test - if you happen to have a dial indicator and magnetic stand, jack up the car and remove a wheel. Place the dial indicator against the rotor and slowly turn it. If the rotor is warped, you will see the needle on the dial indicator move.
take off the wheel , and look at them side on, so U are looking at the thin bit, then spin them, the faster U do it the more U will notice a wrap.
an unwrapped disc will appear to stay still as U look at it from the side, where as a wrap one will appear to wobble
Steering wheel shakes when braking if front discs.
Whole car will shake if you apply handbrake means rear are warped.
take your car in for a complete (check-up)
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